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农业生产上除了继续注意主要作物的品质和产量改良外,已开始发展其他经济作物。而这些新发展的作物,有的过去很少接触到它们的育种问题,有的甚至还处于半野生状态。对于这些新作物如何
In addition to continuing to pay attention to improving the quality and yield of major crops in agricultural production, other cash crops have started to be developed. Some of these newly developed crops have rarely been exposed to their breeding problems in the past, and some are even semi-wild. How about these new crops